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media: amphion: release core lock before reset vpu core

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[ Upstream commit a621cc4bed ]

In reset vpu core, driver will wait for a response event,
but if there are still some events unhandled,
they will be handled first, driver may acquire core lock for that.
So if we do reset in core lock, it may led to reset timeout.

Fixes: 9f599f351e ("media: amphion: add vpu core driver")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ming Qian
2022-06-28 06:19:52 +01:00
committed by Greg Kroah-Hartman
parent 4b8d0fa094
commit 70b148acab
1 changed files with 6 additions and 1 deletions
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7
drivers/media/platform/amphion/vpu_core.c
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@@ -455,8 +455,13 @@ int vpu_inst_unregister(struct vpu_inst *inst)
}
vpu_core_check_hang(core);
if (core->state == VPU_CORE_HANG && !core->instance_mask) {
int err;
dev_info(core->dev, "reset hang core\n");
if (!vpu_core_sw_reset(core)) {
mutex_unlock(&core->lock);
err = vpu_core_sw_reset(core);
mutex_lock(&core->lock);
if (!err) {
core->state = VPU_CORE_ACTIVE;
core->hang_mask = 0;
}